Sorry my fault, I wasn't detailed enough. Basically I have a main cfgrid query called getICS but wanting to have a pull down within the cfgrid extracting the variable from from another query (Get_modality), so I can insert the value from "Get_modality.Type" into "MODALITY"

Full error description:
Complex object types cannot be converted to simple values.
The expression has requested a variable or an intermediate expression result as a simple value, however, the result cannot be converted to a simple value. Simple values are strings, numbers, boolean values, and date/time values. Queries, arrays, and COM objects are examples of complex values.
The most likely cause of the error is that you are trying to use a complex value as a simple one. For example, you might be trying to use a query variable in a cfif tag